קוד:
#include <stdio.h>
#define MAT 5
#define L_MAT 5
void main()
{
long int i,j;
long int mat[MAT][L_MAT] ={
{7,1,0,4.1},
{0,1,2,0,5},
{9,9,0,2,1},
{2,0,9,5,4},
{9,0,1,2,2},
};
for (i=0;i<MAT;i++)
for (j=0;j<L_MAT;j++)
{
if (mat[i][j]==0)
{
if(mat[i+1][j-1]||mat[i+1][j]||mat[i+1][j+1]==0)
printf("%ld,%ld\n",i,j);
}
}
}